import UIKit
var str = "Hello, playground"
class Person {
var Name:String = "initial name"
init () {
}
func Walk() {
println("I'm walking")
}
}
var a = Person()
a.Name = "Alice"
a.Walk()
class Superhuman : Person {
var AlterEgoName:String = "Clark"
func Fly() {
println("I'm flying")
}
override func Walk() {
println("I'm fast")
}
}
var b = Superhuman()
b.Name
b.Walk()
b.Fly()